In our D&D 5e games, I am not sure how to handle the following situation relating to stealth:
Enemies are in a room. The rogue stays outside, stepping to the side in order to be able to hide. Now, can he attack the enemies inside the room with his bow while getting advantage and sneak attack?
In favor of sneak attacking one might say, that the enemies don't see him prepare and have little time to react to his attack.
On the other hand, they know where he is, they just can't see him.
Is the situation different with a pile of boxes, where they know he's hidden behind the boxes, but not from which end he will attack?